DE19700682C2 - Optische Add/Drop-Schaltung mit Lichtleitergitter - Google Patents

Optische Add/Drop-Schaltung mit Lichtleitergitter

Info

Publication number
DE19700682C2
DE19700682C2 DE19700682A DE19700682A DE19700682C2 DE 19700682 C2 DE19700682 C2 DE 19700682C2 DE 19700682 A DE19700682 A DE 19700682A DE 19700682 A DE19700682 A DE 19700682A DE 19700682 C2 DE19700682 C2 DE 19700682C2
Authority
DE
Germany
Prior art keywords
optical
light
light guide
wavelength
add
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE19700682A
Other languages
German (de)
English (en)
Other versions
DE19700682A1 (de
Inventor
Hideki Noda
Nobuhiro Fukushima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE19700682A1 publication Critical patent/DE19700682A1/de
Application granted granted Critical
Publication of DE19700682C2 publication Critical patent/DE19700682C2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
    • G02B6/29382—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM including at least adding or dropping a signal, i.e. passing the majority of signals
    • G02B6/29383—Adding and dropping
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type
    • G02B6/29319—With a cascade of diffractive elements or of diffraction operations
    • G02B6/2932—With a cascade of diffractive elements or of diffraction operations comprising a directional router, e.g. directional coupler, circulator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0206—Express channels arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0213—Groups of channels or wave bands arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0215—Architecture aspects
    • H04J14/0217—Multi-degree architectures, e.g. having a connection degree greater than two

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
DE19700682A 1996-07-16 1997-01-10 Optische Add/Drop-Schaltung mit Lichtleitergitter Expired - Lifetime DE19700682C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8186156A JPH1032562A (ja) 1996-07-16 1996-07-16 光アッド／ドロップ回路

Publications (2)

Publication Number Publication Date
DE19700682A1 DE19700682A1 (de) 1998-01-22
DE19700682C2 true DE19700682C2 (de) 2000-02-24

Family

ID=16183368

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19700682A Expired - Lifetime DE19700682C2 (de) 1996-07-16 1997-01-10 Optische Add/Drop-Schaltung mit Lichtleitergitter

Country Status (3)

Country Link
JP (1) JPH1032562A (ja)
DE (1) DE19700682C2 (ja)
GB (1) GB2315380A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6493117B1 (en) 1997-08-27 2002-12-10 Nortel Networks Limited WDM optical network with passive pass-through at each node

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3329655B2 (ja) * 1996-03-04 2002-09-30 ケイディーディーアイ株式会社 光ａｄｍ装置
US5982518A (en) * 1996-03-27 1999-11-09 Ciena Corporation Optical add-drop multiplexers compatible with very dense WDM optical communication systems
EP1012646A1 (en) * 1996-10-10 2000-06-28 Tyco Submarine Systems Ltd. Method and apparatus for combining add/drop optical signal lines from a plurality of branching units
KR0183945B1 (ko) * 1996-11-28 1999-05-15 삼성전자주식회사 광 디멀티플렉서
GB2320828B (en) * 1996-12-30 2001-05-02 Furukawa Res & Engineering Isolated multiple grating systems for filtering requirements
WO1999040700A1 (en) * 1998-02-05 1999-08-12 Ciena Corporation Wdm ring having an optical service channel
US6351581B1 (en) 1998-03-17 2002-02-26 Agere Systems Optoelectronics Guardian Corp. Optical add-drop multiplexer having an interferometer structure
AU757003B2 (en) * 1998-03-24 2003-01-30 Sumitomo Electric Industries, Ltd. WDM transmission repeater, WDM transmission system and WDM transmission method
US6169616B1 (en) * 1998-06-04 2001-01-02 Avanex Corporation Optical and programmable fiber optic wavelength add/drop system
KR100400362B1 (ko) * 1998-08-04 2003-11-14 삼성전자주식회사 광결합및분리장치,그리고 이를구비한파장분할다중화광링크
FI990238A (fi) 1999-02-08 2000-08-09 Nokia Networks Oy OptinenADd/drop-laite
GB2348557B (en) * 1999-04-01 2002-03-13 Marconi Comm Ltd Communications system
US6577415B1 (en) * 1999-06-15 2003-06-10 Lucent Technologies Inc. Optical add-drop module with low loss and high isolation
FR2800949B1 (fr) * 1999-11-08 2002-04-12 Cit Alcatel Procede d'extraction de canal pour systeme de transmission optique a multiplex de longueurs d'onde et dispositifs appliquant ce procede
US20030016911A1 (en) * 2001-07-19 2003-01-23 Samad Talebpour Random access optical add/drop switch
KR20030017862A (ko) * 2001-08-23 2003-03-04 주식회사데이콤 파장가변 광 분기 및 결합 장치
GB0126168D0 (en) 2001-10-31 2002-01-02 Cit Alcatel A branching unit
KR100965842B1 (ko) * 2008-07-15 2010-06-28 전자부품연구원 다채널 광분기결합 멀티플렉서

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0638837A1 (en) * 1993-08-10 1995-02-15 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Device for extraction and re-insertion of an optical carrier in optical communications networks
EP0713110A1 (en) * 1994-11-16 1996-05-22 Nortel Networks Corporation Optical waveguide grating filter

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Publication number Priority date Publication date Assignee Title
GB2161612B (en) * 1984-07-11 1988-02-03 Stc Plc Optical fibre transmission systems
GB2265059B (en) * 1992-03-04 1995-07-26 Northern Telecom Ltd Optical regenerators
IT1265017B1 (it) * 1993-08-10 1996-10-17 Cselt Centro Studi Lab Telecom Commutatore ottico selettivo in lunghezza d'onda.
FR2731082B1 (fr) * 1995-02-28 1997-04-04 France Telecom Multiplexeur optique a insertion-extraction utilisant des circulateurs optiques et des reseaux de bragg photoinscrits
US5532864A (en) * 1995-06-01 1996-07-02 Ciena Corporation Optical monitoring channel for wavelength division multiplexed optical communication system
FR2736480B1 (fr) * 1995-07-05 1997-09-19 France Telecom Disposif de coloration de signaux optiques
CA2224494A1 (en) * 1995-08-04 1997-02-20 Martin Pettitt Add/drop multiplexer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0638837A1 (en) * 1993-08-10 1995-02-15 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Device for extraction and re-insertion of an optical carrier in optical communications networks
EP0713110A1 (en) * 1994-11-16 1996-05-22 Nortel Networks Corporation Optical waveguide grating filter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
OPTRONICS (1995), Nr.11, S.135-141 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6493117B1 (en) 1997-08-27 2002-12-10 Nortel Networks Limited WDM optical network with passive pass-through at each node
US6529300B1 (en) 1997-08-27 2003-03-04 Nortel Networks Limited WDM optical network with passive pass-through at each node
US6556321B1 (en) 1997-08-27 2003-04-29 Nortel Networks Limited WDM optical network and switching node with pilot tone communications
US6563615B2 (en) 1997-08-27 2003-05-13 Nortel Networks Limited Technique for detecting noise on a data channel
US6631018B1 (en) 1997-08-27 2003-10-07 Nortel Networks Limited WDM optical network with passive pass-through at each node
US6748174B2 (en) 1997-08-27 2004-06-08 Nortel Networks Limited WDM optical network with passive pass-through at each node
US6751418B2 (en) 1997-08-27 2004-06-15 Nortel Networks Limited WDM optical network with passive pass-through at each node
US6757498B2 (en) 1997-08-27 2004-06-29 Nortel Networks Limited WDM optical network with passive pass-through at each node
US6775479B2 (en) 1997-08-27 2004-08-10 Nortel Networks Corporation WDM optical network with passive pass-through at each node
US6795652B2 (en) 1997-08-27 2004-09-21 Nortel Networks Limited WDM optical network with passive pass-through at each node

Also Published As

Publication number Publication date
GB2315380A (en) 1998-01-28
GB9625438D0 (en) 1997-01-22
JPH1032562A (ja) 1998-02-03
DE19700682A1 (de) 1998-01-22

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
R071 Expiry of right